2640078803 has 2 divisors, whose sum is σ = 2640078804. Its totient is φ = 2640078802.

The previous prime is 2640078773. The next prime is 2640078809. The reversal of 2640078803 is 3088700462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2640078803 - 2⁸ = 2640078547 is a prime.

It is not a weakly prime, because it can be changed into another prime (2640078809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320039401 + 1320039402.

It is an arithmetic number, because the mean of its divisors is an integer number (1320039402).

Almost surely, 2^2640078803 is an apocalyptic number.

2640078803 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640078803 is an equidigital number, since it uses as much as digits as its factorization.

2640078803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 2640078803 is about 51381.6971595918. The cubic root of 2640078803 is about 1382.0983974331.

The spelling of 2640078803 in words is "two billion, six hundred forty million, seventy-eight thousand, eight hundred three".